Allied Commercial ZGB048S4B/E Commercial Packaged Rooftop Unit
Technical Specification
- Make: Allied Commercial
- Model code: ZGB048S4B/E
- Series: Z Series
- Power: 40,000 ~ 50,000 BTU/H
- Capacity: 4 tons
Efficiency ratings up to 13.4 SEER2, 15.5 IEER AND up to 11.5 EER2 Compatible with 20+ years of existing units, eliminating the cost of an adaptor curb in many replacement jobs Eco-Last™ Coil System uses up to 52% less refrigerant, is up to 59% lighter, and has up to 20% fewer brazed joints than regular rooftop unit coils (standard on ZC and ZG models) Being 18% lighter than other like units, makes Z-Series units easier to lift and move* Exact charge is weighed in at the factory to ensure precise operation Scroll compressor on all units for reliable long-term operation Goes through a 200-point quality check and a rigorous run-testing regimen before leaving the factory High-pressure switch guards the compressor from extreme operating conditions Common utility connection points allow for faster and easier installations
Read more| Make | Allied Commercial |
|---|---|
| Manufacturer | Allied Air Enterprises |
| Category | Cooling>Packaged Units/RTU |
| Model code | ZGB048S4B/E |
| Series | Z Series |
| Power | 40,000 ~ 50,000 BTU/H |
| Capacity | 4 tons |
| Weight | 538 lbs |
| Dimensions |
Height: 37 inches Width: 48 inches Depth: 76 inches |
Product description
The Allied Commercial ZGB048S4B/E rooftop unit, part of the versatile Z-Series™, offers superior performance and efficient installation for HVAC professionals. Designed to fit the most popular curb sizes, this 4-ton gas/electric unit eliminates the need for costly adapter curbs, facilitating easy curb compatibility and utility connections. With efficiency ratings up to 14.0 SEER, 11.7 EER, and 15.0 IEER, it promises energy savings and reliable performance.
Key Features
- Eco-Last™ Coil System: All-aluminum construction provides durability and corrosion resistance, using up to 52% less refrigerant and being up to 59% lighter than conventional coils.
- Smart Technology: With Single-Zone VAV (Variable Air Volume) on 6- to 12.5-ton models, enjoy enhanced energy savings and comfort with efficient blower speed modulation.
- Right-Fit Compatibility: Designed for seamless integration with existing installations, eliminating the need for an adapter curb and providing savings on installation costs.
- Factory Tested and Field Ready: Each unit undergoes rigorous quality checks and precise factory charging, ensuring reliable operation upon installation.
Ideal Use Cases
The ZGB048S4B/E rooftop unit is perfect for commercial settings requiring efficient heating and cooling solutions with minimal installation modifications. Its compatibility with existing utility connections makes it ideal for replacement jobs, offering significant savings in installation costs.
Reliability and Support
Backed by comprehensive warranties, including a 10-year limited warranty on the gas heat exchanger and a 5-year warranty on the compressor, the ZGB048S4B/E ensures long-term, hassle-free operation. The thoughtful design includes hinged access panels and tool-less filter access for easy maintenance and serviceability.

